//computes the sine using the CORDIC algorithm 


double corsin(double x)
{
	int i;
	int digit[10];
	double sinv,cosv;
	for(i=0;i<10;i++)
	{
		x=x*10;
		digit[i]=(int)floor(x)%10;
		x=x-floor(x);
	}
	sinv=svalue[0][digit[0]];
	cosv=cvalue[0][digit[0]];
	for(i=0;i<9;i++)
	{
		sinv=sinv*cvalue[i+1][digit[i+1]]+cosv*svalue[i+1][digit[i+1]];
		cosv=cosv*cvalue[i+1][digit[i+1]]-sinv*svalue[i+1][digit[i+1]];
	}
	return sinv;
}